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प्रश्न
Find the value of x, if sin 2x = 2 sin 45° cos 45°
उत्तर
sin 2x = 2 sin 45° cos 45°
sin 2x = `2(1/sqrt2)(1/sqrt2)`
sin 2x = 1 = sin 90°
2x = 90°
Hence, x = 45°
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